Safe
Free

dot3msm.dll

x86 Windows System
Verified

This is a Core Windows System File

dot3msm.dll is a critical Windows component. If it's missing or corrupted, you should repair Windows rather than replace the file manually.

Recommended: Run System File Checker

sfc /scannow

Open Command Prompt as Administrator and run this command.

Why You Shouldn't Just Download the DLL

  • DLLs depend on other DLLs - copying one file won't fix the chain
  • Runtime packages register components in Windows correctly
  • Version mismatches can cause more problems
  • The official installer handles all of this automatically

Compatibility

Windows Server 2022 Windows Server 2019 Windows Server 2016

File Details

Name
dot3msm.dll
Size
80.5 KB
Version
10.0.20348
Architecture
x86
Source
Windows system
Part of
Windows System

Hash Verification

51f9c5ee154a3fac58be6fbcfc092656cb5bf9083c2ce45ffe8b907273381ce1
3236774ff89ff0f0fa71cd2b65f80a17
ADVANCED

Manual DLL Download

Only if installer doesn't work

This is a last resort. Try the official installer first.
Download ZIP

80.5 KB | x86

343 downloads

Manual Installation Steps
  1. 1 Extract the ZIP file
  2. 2 Copy to C:/Windows/SysWOW64/
  3. 3 If needed: regsvr32 dot3msm.dll

Official Microsoft source

Malware scanned

SHA-256 verified

Other Versions

dot3msm.dll
x64